Andrew Abraham
@andrewabraham.bsky.social
1.2K followers 320 following 55 posts
Marie Skłodowska-Curie Fellow at @ECONOVO - Aarhus University biodiversity | ecology | global change | rewilding | wildlife management
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andrewabraham.bsky.social
Super important work by Tim Kuiper and co!
timkuiper.bsky.social
Still can't believe we got onto the cover of Science! Across 11 reserves and 7 years, we found that dehorning achieved large reductions in poaching, but it's not a magic bullet

Full article: www.science.org/doi/10.1126/...

Popular version: www.dailymaverick.co.za/article/2025...
andrewabraham.bsky.social
Great opportunity to lead discussions in biodiversity conservation for ECRs
celestemare.bsky.social
Are you an early career researcher (ECR) passionate about #Conservation? See below for an amazing opportunity to work with fellow motivated ECRs to explore and develop important themes around Biodiversity conservation! Deadline is 12 June 2025. www.linkedin.com/posts/celest...
#conservation | Celesté Maré
Are you an early career researcher (ECR) passionate about #Conservation? See below for an amazing opportunity to work with fellow motivated ECRs to explore and develop important themes around Conserva...
www.linkedin.com
andrewabraham.bsky.social
Great project, with a great team!
funkyant.bsky.social
Closing tomorrow! Last chance to apply for postdoc to explore the role of animals in savanna ecosystem productivity & nutrient cycling! Link to job: tinyurl.com/53dy4584 #savanna #termites #largemammals
Reposted by Andrew Abraham
funkyant.bsky.social
Closing tomorrow! Last chance to apply for postdoc to explore the role of animals in savanna ecosystem productivity & nutrient cycling! Link to job: tinyurl.com/53dy4584 #savanna #termites #largemammals
andrewabraham.bsky.social
Pretty simple instructions to follow
ourworldindata.org
If you want to reduce the carbon footprint of your diet, less meat is nearly always better than sustainable meat.
A graph comparing the greenhouse gas emissions of various protein-rich foods, measured in kilograms of carbon dioxide equivalents (kgCO2 eq) per 100 grams of protein. The chart features colorful curves representing different food items, with the height of each curve indicating the level of emissions associated with its production.

The bottom line is that plant-based protein sources still have a lower footprint than the lowest-impact meat products.

Sources are credited to Joseph Poore and Thomas Nemecek (2018) for the data and Our World in Data for the visualization
Reposted by Andrew Abraham
trevorabranch.bsky.social
The "great whale conveyer belt" that transports nitrogen, carbon, and biomass from high latitude feeding grounds to concentrated low latitude breeding grounds in gray, humpback, and right whales.

Lovely figure by A. Boersma
doi.org/10.1038/s414...
andrewabraham.bsky.social
Sure to be an interesting talk by @andrebellve.bsky.social.. also, be prepared for some excellent graphics! #scicomm
andrebellve.bsky.social
Lecture at 12 PM EST today - sign up if you are interested in a long-term perspective of seabird declines and what it means for nutrient transport!

bsky.app/profile/biog...
biogeography.bsky.social
This month's Funk lecture is just one week away! Dr. André Bellvé will be presenting on reconstructing paleo-nutrient fluxes, using seabirds in New Zealand as a fascinating case study. We hope to see you there!

For more information and to register, please visit our website: www.biogeography.org
andrewabraham.bsky.social
Beautiful sighting of a martial eagle eating a mongoose at iSimangaliso park today
andrewabraham.bsky.social
Our world is connected in many more ways than we think! Many thanks to a fabulous co-author team, led by Joe Roman @jjkiszka.bsky.social @luishuckstadt.bsky.social
andrewabraham.bsky.social
But, industrial whaling has decimated whale populations, reducing this vital ecosystem process by about two-thirds. Today, conservation efforts have partially re-established the Great Whale Conveyor Belt, although climate change poses a new threat.
andrewabraham.bsky.social
The whale-derived nutrients help support nutrient-poor tropical lagoon ecosystems, such as coral reefs. In Hawaii, we calculate that nutrient release by whales is ~1.5x more than abiotic processes, such as upwelling.
andrewabraham.bsky.social
Each year, the whales undertake long migrations to give birth to their calves in warm tropical lagoons. In doing so, they transport vast quantities of nutrients such as nitrogen and release these in their urine, placenta and carcasses.
andrewabraham.bsky.social
Whales spend their summers feeding in cold, nutrient-rich waters at high-latitude locations such as Alaska or Antarctica. During this time they build vast energy reserves and store this as blubber.
andrewabraham.bsky.social
The Great Whale Conveyor Belt - Earth's largest mammals keep the oceans thriving!

Our new study quantifies the world's longest nutrient-transport system as whales migrate across vast ocean basins.

www.nature.com/articles/s41...
Reposted by Andrew Abraham
jeep4x4.bsky.social
So what actually happened when the dinosaurs died?🦕

Using simple ecological rules*, we explore how the interplay between ecosystem engineering, seed size and light environment can explain temporal patterns of animal and seed sizes from the fossil record🌳🐘🐀🌱

onlinelibrary.wiley.com/doi/10.1111/...
Ecosystem engineers alter the evolution of seed size by impacting fertility and the understory light environment
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onlinelibrary.wiley.com
andrewabraham.bsky.social
A great thread by @alexanderlees.bsky.social on the positive and negative impacts of bird feeding, including our recent paper highlighting issues of nutrient pollution and changes to local biogeochemical cycles:

esajournals.onlinelibrary.wiley.com/doi/10.1002/...).
alexanderlees.bsky.social
Quick thread on some new papers on the science of impacts of bird feeding since the publication of our papers here www.sciencedirect.com/science/arti... and here britishbirds.co.uk/journal/arti... #Ornithoogy #UKBirding🧵 1/
Fig. 1. Schematic illustrating novel interactions facilitated by garden bird provisioning. All arrows indicate predation with the exception of the one between C and G which indicates competition. Red arrows indicate a negative effect while blue arrows indicate a positive effect. Arrow size is not indicative of effect size and illustrations are not to scale. A) provisioned nestbox B) provisioned food C) intended provision recipient D) non-native invasive recipient E) natural omnivorous mesopredator F) natural carnivorous predator G) non-provisioned competitor of recipient H) natural prey I) non-native invasive omnivorous mesopredator J) domestic pet predator. Individual illustrations purchased from istockphoto.com and adapted. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
andrewabraham.bsky.social
Nice coverage of our recent paper on using animal death as a rational approach to improve zoo population management: www.pnas.org/doi/10.1073/...
andrewabraham.bsky.social
23. We must instead take responsibility for the welfare-oriented way in which animals live and die under our care, while educating the broader public about the biological and ethical reasons for using death as an effective and sustainable population-management strategy.
andrewabraham.bsky.social
22. We live at a time when outsourcing unpleasant truths about animal deaths is no longer adequate. To do so shirks our duty of care to species under human protection—in the interest of minimising presumed backlash from the public.
andrewabraham.bsky.social
21. There are circumstances when planned mortality is most appropriate. Clearly, it should be an option when zoo capacity is full. The more vulnerable a population is to extinction, the more important that its reproduction is not to be halted and that robust population structures are maintained.